Centrally activated pipe snubbing system

Patent · Tue Apr 16 00:00:00 EST 1985

OSTI ID:5346786

Cawley, W E

An electromechanical pipe snubbing system and an electromechanical pipe snubber. In the system, each pipe snubber, in a set of pipe snubbers, has an electromechanical mechanism to lock and unlock the snubber. A sensor, such as a seismometer, measures a quantity related to making a snubber locking or unlocking decision. A control device makes an electrical connection between a power supply and each snubber's electromechanical mechanism to simultaneously lock each snubber when the sensor measurement indicates a snubber locking condition. The control device breaks the connection to simultaneously unlock each snubber when the sensor measurement indicates a snubber unlocking condition. In the snubber, one end of the shaft slides within a bore in one end of a housing. The other end of the shaft is rotatably attached to a pipe; the other end of the housing is rotatively attached to a wall. The snubber's electromechanical mechanism locks the slidable end of the shaft to the housing and unlocks that end from the housing. The electromechanical mechanism permits remote testing and lockup status indication for each snubber.

• Assignee: The United States of America as represented by the United States Department of Energy
• Patent Number(s): US 4511114
• OSTI ID: 5346786
• Resource Relation: Patent File Date: Filed date 18 Jan 1982; Other Information: PAT-APPL-340450
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
22 GENERAL STUDIES OF NUCLEAR REACTORS
PIPES
CONTROL EQUIPMENT
SHOCK ABSORBERS
POWER PLANTS
HYDRAULICS
MECHANICAL VIBRATIONS
SEISMIC WAVES
VALVES
EQUIPMENT
FLOW REGULATORS
FLUID MECHANICS
MECHANICS
200104* - Fossil-Fueled Power Plants- Components
220200 - Nuclear Reactor Technology- Components & Accessories